Enhanced Impurity Scattering due to Quantum Critical Fluctuations: Perturbational Approach

Kazumasa Miyake, Osamu Narikiyo

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

It is shown on the basis of the lowest order perturbation expansion with respect to critical fluctuations that the critical fluctuations give rise to an enhancement of the potential scattering of non-magnetic impurities. This qualitatively accounts for the enhancement of the resistivity due to impurities which has been observed in variety of systems near the quantum critical point, while the higher order processes happen to give much larger enhancement as seen from the Ward identity arguments. The cases with dynamical critical exponent z = 2 and z = 3 are discussed explicitly.

Original languageEnglish
Pages (from-to)867-871
Number of pages5
Journaljournal of the physical society of japan
Volume71
Issue number3
DOIs
Publication statusPublished - Mar 1 2002

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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